Boundary conditions for interfaces of electromagnetic crystals and the generalized Ewald-Oseen extinction principle
Boundary conditions for interfaces of electromagnetic crystals and the generalized Ewald-Oseen extinction principle
The problem of plane-wave diffraction on semi-infinite orthorhombic electromagnetic (photonic) crystals of a general kind is considered. Boundary conditions are obtained in the form of infinite system of equations relating amplitudes of incident wave, eigenmodes excited in the crystal, and scattered spatial harmonics. The generalized Ewald-Oseen extinction principle is formulated …